. >> reporter: this is angela. she lives nearby. she, too, took pictures of the fire this morning. she says a guy has been squatting in this apartment so long that she considered him a neighbor. she said she saw men and women coming and going from that apartment building. >> i knew bad stuff was going on over there. >> when this fire happened -- >> it came to reality. >> reporter: was this an accident or something else? at the scene, homicide detectives, crime scene technicians, and atf agents. all here investigating just in case this is not what it seems to be. so far, we don't know the victims' names. we don't know the cause of their death. we don't know the cause of this violent fire. live in southeast, pat collins, news4. >>> a 10-year-old fwroy alexandria is out of juvenile detention tonight. police arrested him this morning. because he brought a toy gun to douglas macarthur elementary. northern virginia bureau reporter david culver talked to parents today. >> yeah, shocked. very shocked. >> reporter: sherry caught off guard as she picked up her guards from macarthur elementar